446D Backhoe Loader Caterpillar

Clean the Filter Element

Clean the filter element weekly, but clean the filter element daily when there is a reduction of air circulation.

Illustration 1	g00741461

1. Remove the filter cover that is located at the bottom of the right hand console.

2. Remove the filter element.

3. Clean the filter element with compressed air or pressure water. Direct the air or the water along the pleats of the element. You can also wash the element with clean water and nonsudsing household detergent.

4. Rinse the filter element thoroughly with clear water.

5. Allow the filter element to air dry. Inspect the element for damage. If the filter element is damaged, replace the filter element.

6. Install the filter element.

7. Install the filter cover.

Clean the Precleaner (If Equipped).

Illustration 2	g01045472

Illustration 3	g00987920

1. Remove the filter cover that is located under the cab. The precleaner is located directly beneath the air conditioner.

2. Remove the foam element.

Note: Most of the debris can be removed by striking the foam element against a hard surface.

3. The foam element can also be cleaned with clean water and nonsudsing household detergent.

4. Rinse the foam element thoroughly with clear water.

5. Allow the foam element to air dry. Inspect the element for damage. If the foam element is damaged, replace the foam element.

6. Install the foam element.

7. Install the filter cover.